Can region be defined outside of the theme's .info file?

Question

Basically I'm trying to reverse-engineer a theme that was developed by another guy. The problem is that I'm not yet quite firm on Drupal ground.

So I'm looking onto a management page for blocks and see a specific region, which is not defined in theme's .info file...

Can regions be defined elsewhere? Or inherited from somewhere else (another theme maybe)?

UPDATE: Since to inherit something this should be a sub-theme, which should be denoted by:

base theme = themeName

line in themeName.info file. But there is no such line in this theme... :( This undefined region should be coming from somewhere else...

Answer 1

Drupal 7 has 5 default regions:

• regions[sidebar_first] = Left sidebar

• regions[sidebar_second] = Right sidebar

• regions[content] = Content

• regions[header] = Header

• regions[footer] = Footer

• regions[highlighted] = Highlighted

• regions[help] = Help

Regions aren't inherited by parent themes: https://drupal.org/node/225125.

If I'm not mistaken you used to be able to define regions in theme_region(), but I believe that's no longer being used.

Answer 2

Ok, it turned out that it was the region defined in .info file after all. It's just that Drupal I was working with was using different language pack and simply silently translated region names were it could. That's what confused me - one region got translated and the rest stayed intact.

Might be useful for someone hitting the same problem.